Expandable central processing system



FIG. 1 is a top, front, right side perspective view of an expandable central processing system showing our new design;

FIG. 2 is a front elevational view thereof on a reduced scale;

FIG. 3 is a rear elevational view thereof on a reduced scale;

FIG. 4 is a top plan view thereof on a reduced scale;

FIG. 5 is a bottom plan view thereof on a reduced scale;

FIGS. 6 and 7 are respectively left and right side elevational views thereof on a reduced scale;

FIG. 8 is a top, front, right side perspective view of a second embodiment of our new design, the second embodiment consisting of the two units of the first embodiment with an add-on cabinet unit.

FIG. 9 is a bottom plan view of the add-on cabinet unit of the second embodiment;

FIG. 10 is a rear elevational view of the second embodiment;

FIG. 11 is a left side elevational view of the second embodiment;

FIG. 12 is a top plan view of a third embodiment of our new design;

FIG. 13 is a front elevational view thereof on a reduced scale;

FIG. 14 is an elevational view thereof as seen from the left hand side of FIG. 12;

FIG. 15 is a rear elevational view thereof; and

FIG. 16 is an elevational view as seen from the right hand side of FIG. 12. 

The ornamental design for an expandable central processing system, as shown and described. 